Method and system for compressing data

a multi-modal imaging and compression technology, applied in the field of imaging systems, can solve the problems of increasing the cost of streaming and storing list data, relying on list data,

Active Publication Date: 2011-09-06
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The previously stated PET Imaging scanner trends toward greater number of detector crystals, and increased Time-Of-Flight (TOF) timing precision and resolution, etc., coupled with the increased reliance on list files, retrospective list replay to produce gated, dynamic and / or static frames of data from a single PET scan are factors that will increase the reliance on list data and therefore increase the cost of streaming and storing list data.

Method used

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  • Method and system for compressing data
  • Method and system for compressing data
  • Method and system for compressing data

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Embodiment Construction

[0024]The foregoing summary as well as the following detailed description of certain embodiments of the present invention, will be better understood when read in conjunction with the appended drawings. To the extent that the figures illustrate diagrams of the functional blocks of various embodiments, the functional blocks are not necessarily indicative of the division between hardware circuitry. Thus, for example, one or more of the functional blocks (e.g., processors or memories) may be implemented in a single piece of hardware (e.g., a general purpose signal processor or a block of random access memory, hard disk, or the like). Similarly, the programs may be stand alone programs, may be incorporated as subroutines in an operating system may be functions in an installed software package, and the like. It should be understood that the various embodiments are not limited to the arrangements and instrumentality shown in the drawings.

[0025]As used herein, an element or step recited in ...

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Abstract

A method for compressing imaging data includes acquiring a stream of imaging data, and dividing the stream of imaging data into a plurality of interstices, each interstice including a plurality of detected events. The also includes classifying the detected events within each interstice based on a probability of occurrence of the detected event, and reordering the detected events within each interstice based on the probability of occurrence to compress the image data. The method further includes generating a ring pair identification number for each detected event in the plurality of interstices.

Description

BACKGROUND OF THE INVENTION[0001]This invention relates generally to imaging systems capable of operation in multiple modalities, and more particularly to an apparatus and method for compressing imaging data generated by a multi-modality imaging system.[0002]Multi-modality imaging systems are capable of scanning using different modalities, such as, for example, Positron Emission Tomography (PET), Single Photon Emission Computed Tomography (SPECT), and Computed Tomography (CT). During operation of a PET imaging system for example, a patient is initially injected with a radiopharmaceutical that emits positrons as it decays. The emitted positrons travel a relatively short distance before they encounter an electron, at which point an annihilation occurs whereby the electron and positron are annihilated and converted into two gamma rays each having an energy of 511 keV. The two gamma rays are directed in nearly opposite directions and detected approximately simultaneously by two separate...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G06K9/36G16H30/20G16H30/40
CPCA61B6/037G01T1/2985G06F19/321H03M7/30A61B6/032G16H30/40G16H30/20
Inventor COOK, MICHAEL JOSEPH
Owner GENERAL ELECTRIC CO
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